摘要 |
PROBLEM TO BE SOLVED: To ensure a sufficient intake air quantity, and prevent dust from invading into an air cleaner by forming an intake passage communicated with the air cleaner between a body frame such as a bicycle with a donkey engine and a fuel tank housed in the frame. SOLUTION: A bicycle with a donkey engine having pedals is provided with a body frame 15 wherein a head pipe 16 for supporting a front folk is disposed on a front end part, and an engine is disposed on a lower part of a down frame 17 of the body frame 15. An intake passage 104 communicated with a non- purifying chamber 99 for an air cleaner 96 through a first partition 76 and a cover 19 is formed between the inner surface of the down frame 17 and the cover 19, and an outer surface of a fuel tank 101 housed in the down frame 17. An air leading inlet 105 enclosing a fuel filling pipe 101a is disposed on the cover 19 so as to communicate with the intake passage 104. An air cleaner case 94 is formed between a tank housing chamber 89 and an intake chamber 90. |